cosecant
n.
1706, from co, short for complement, + secant.
〔蒋〕[co-余,sect=cut切割] (数学)余割
词汇 | cosecant |
词根词缀 | Online Etymology Dictionary 词根李平武蒋争 cosecant n. 1706, from co, short for complement, + secant. 〔蒋〕[co-余,sect=cut切割] (数学)余割 |
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